CVE-2021-3764
kernel: DoS in ccp_run_aes_gcm_cmd() function
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.
Se ha encontrado un fallo de pérdida de memoria en la función ccp_run_aes_gcm_cmd() del kernel de Linux que permite a un atacante causar una denegación de servicio. La vulnerabilidad es similar a la anterior CVE-2019-18808. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-09-03 CVE Reserved
- 2022-05-11 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
- CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://security-tracker.debian.org/tracker/CVE-2021-3764 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680 | 2022-08-25 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3764 | 2022-05-10 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1997467 | 2022-05-10 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | <= 5.14.20 Search vendor "Linux" for product "Linux Kernel" and version " <= 5.14.20" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.15 Search vendor "Linux" for product "Linux Kernel" and version "5.15" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.15 Search vendor "Linux" for product "Linux Kernel" and version "5.15" | rc1 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.15 Search vendor "Linux" for product "Linux Kernel" and version "5.15" | rc2 |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 5.15 Search vendor "Linux" for product "Linux Kernel" and version "5.15" | rc3 |
Affected
| ||||||